79667723142 has 48 divisors (see below), whose sum is σ = 198273902112. Its totient is φ = 22646655360.

The previous prime is 79667723131. The next prime is 79667723147. The reversal of 79667723142 is 24132776697.

It is a super-2 number, since 2×79667723142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79667723147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1579959 + ... + 1629602.

It is an arithmetic number, because the mean of its divisors is an integer number (4130706294).

Almost surely, 2^79667723142 is an apocalyptic number.

79667723142 is an abundant number, since it is smaller than the sum of its proper divisors (118606178970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79667723142 is a wasteful number, since it uses less digits than its factorization.

79667723142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209773 (or 3209770 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The spelling of 79667723142 in words is "seventy-nine billion, six hundred sixty-seven million, seven hundred twenty-three thousand, one hundred forty-two".